2020-05-15T01:02:10.059335shield sshd\[28088\]: Invalid user dalopsss from 68.183.102.111 port 44682
2020-05-15T01:02:10.065406shield sshd\[28088\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.102.111
2020-05-15T01:02:12.490347shield sshd\[28088\]: Failed password for invalid user dalopsss from 68.183.102.111 port 44682 ssh2
2020-05-15T01:05:28.631536shield sshd\[28887\]: Invalid user user0 from 68.183.102.111 port 52870
2020-05-15T01:05:28.640885shield sshd\[28887\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.102.111

May 15 06:12:54 electroncash sshd[47658]: Invalid user guest from 64.225.25.59 port 34942
May 15 06:12:54 electroncash sshd[47658]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.225.25.59 
May 15 06:12:54 electroncash sshd[47658]: Invalid user guest from 64.225.25.59 port 34942
May 15 06:12:56 electroncash sshd[47658]: Failed password for invalid user guest from 64.225.25.59 port 34942 ssh2
May 15 06:16:38 electroncash sshd[48625]: Invalid user web1 from 64.225.25.59 port 45428
...

badbot

2020-05-14 16:23:12.630120-0500  localhost sshd[89664]: Failed password for invalid user joan from 5.53.125.131 port 33094 ssh2

May 14 18:04:21 web1 sshd\[30522\]: Invalid user sybase from 51.77.41.246
May 14 18:04:21 web1 sshd\[30522\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.41.246
May 14 18:04:22 web1 sshd\[30522\]: Failed password for invalid user sybase from 51.77.41.246 port 54634 ssh2
May 14 18:08:13 web1 sshd\[30892\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.41.246  user=root
May 14 18:08:16 web1 sshd\[30892\]: Failed password for root from 51.77.41.246 port 34062 ssh2

May 15 05:30:10 vps sshd[1114]: Failed password for root from 14.29.214.188 port 36955 ssh2
May 15 05:57:44 vps sshd[2900]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.29.214.188 
May 15 05:57:45 vps sshd[2900]: Failed password for invalid user guest from 14.29.214.188 port 45756 ssh2
...

May 15 06:09:38 srv-ubuntu-dev3 sshd[59978]: Invalid user user2005 from 167.71.254.95
May 15 06:09:38 srv-ubuntu-dev3 sshd[59978]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.71.254.95
May 15 06:09:38 srv-ubuntu-dev3 sshd[59978]: Invalid user user2005 from 167.71.254.95
May 15 06:09:40 srv-ubuntu-dev3 sshd[59978]: Failed password for invalid user user2005 from 167.71.254.95 port 47498 ssh2
May 15 06:13:09 srv-ubuntu-dev3 sshd[60566]: Invalid user 22b from 167.71.254.95
May 15 06:13:09 srv-ubuntu-dev3 sshd[60566]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.71.254.95
May 15 06:13:09 srv-ubuntu-dev3 sshd[60566]: Invalid user 22b from 167.71.254.95
May 15 06:13:11 srv-ubuntu-dev3 sshd[60566]: Failed password for invalid user 22b from 167.71.254.95 port 55850 ssh2
May 15 06:16:33 srv-ubuntu-dev3 sshd[61185]: Invalid user yumi from 167.71.254.95
...

[2020-05-14 21:01:16] NOTICE[1157] chan_sip.c: Registration from '' failed for '192.200.158.118:57931' - Wrong password
[2020-05-14 21:01:16] SECURITY[1173] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-05-14T21:01:16.505-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="8735",SessionID="0x7f5f100266a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/192.200.158.118/57931",Challenge="1d75cf32",ReceivedChallenge="1d75cf32",ReceivedHash="b77d5b55ca931afb2568c0efdcf3115a"
[2020-05-14 21:01:28] NOTICE[1157] chan_sip.c: Registration from '' failed for '192.200.158.118:65386' - Wrong password
[2020-05-14 21:01:28] SECURITY[1173] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-05-14T21:01:28.441-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="922",SessionID="0x7f5f10b1c8b8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/192.200.1
...

May 15 03:23:31  sshd[2007]: Connection closed by 3.92.193.35 [preauth]

May 14 23:53:44 NPSTNNYC01T sshd[7599]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.63.248.149
May 14 23:53:46 NPSTNNYC01T sshd[7599]: Failed password for invalid user profe from 181.63.248.149 port 52737 ssh2
May 14 23:57:59 NPSTNNYC01T sshd[7994]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.63.248.149
...

May 15 06:07:56 OPSO sshd\[27265\]: Invalid user informix from 122.165.207.221 port 16790
May 15 06:07:56 OPSO sshd\[27265\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.165.207.221
May 15 06:07:59 OPSO sshd\[27265\]: Failed password for invalid user informix from 122.165.207.221 port 16790 ssh2
May 15 06:13:12 OPSO sshd\[27931\]: Invalid user deploy from 122.165.207.221 port 63630
May 15 06:13:12 OPSO sshd\[27931\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.165.207.221

$f2bV_matches

port scan and connect, tcp 80 (http)

4 times in 24 hours - [DoS Attack: ACK Scan] from source: 151.101.184.124, port 443, Thursday, May 14, 2020 00:52:52

SSH bruteforce more then 50 syn to 22 port per 10 seconds.